All men have preferences -- some men don't want a small, petite woman -- afraid they'll break them. Therefore, they choose a woman with some substance.
Most black men, and there are exceptions, have wanted and want a thick woman: they're softer, less bony, and generally have meat between their thighs to cushion those hard, thrusting blows.
I've known black men to turn me down because I'm not big enough -- too slim: 5'7" -- with shoes. Big breasts, small waist, small hips, and small, round butt. I don't become offended because I've self confidence that I can get me who want my statistics.